Fix description of helm dependency command

Signed-off-by: Xiangxuan Liu <xiangxuan.liu@rightcapital.com>

cmd/helm/dependency.go

@@ -73,7 +73,7 @@ the dependency charts stored locally. The path should start with a prefix of
       repository: "file://../dependency_chart/nginx"
 
 If the dependency chart is retrieved locally, it is not required to have the
-repository added to helm by "helm add repo". Version matching is also supported
+repository added to helm by "helm repo add". Version matching is also supported
 for this case.
 `
 

docs/helm/helm_dependency.md

@@ -49,7 +49,7 @@ the dependency charts stored locally. The path should start with a prefix of
       repository: "file://../dependency_chart/nginx"
 
 If the dependency chart is retrieved locally, it is not required to have the
-repository added to helm by "helm add repo". Version matching is also supported
+repository added to helm by "helm repo add". Version matching is also supported
 for this case.
 
 
@@ -78,4 +78,4 @@ for this case.
 * [helm dependency list](helm_dependency_list.md)	 - list the dependencies for the given chart
 * [helm dependency update](helm_dependency_update.md)	 - update charts/ based on the contents of requirements.yaml
 
-###### Auto generated by spf13/cobra on 1-Aug-2018
+###### Auto generated by spf13/cobra on 26-Mar-2019